Remote buzzer for Smoke Alarm & microcontroller interface
Featured project on Instructables.
My software, hardware & mechanical projects · root folder
Featured project on Instructables.
Arduino & HC-SR04 ultrasonic sensor
Featured on Hackaday
Irish PAYE Tax Calculator: TaxCalc.eu, updated for budget 2021
Updated each year
Disassembly / teardown / reassembly
Unix Time binary clock, 350 LEDs, same hardware as above
Swiftech download, PDF scanned Aug 2021